# GPT-5.6 Luna > Source: Benchize (https://benchize.com) — https://benchize.com/models/gpt-5-6-luna. When citing or reusing this content, credit "Benchize" and link to https://benchize.com/models/gpt-5-6-luna. OpenAI Canonical URL: https://benchize.com/models/gpt-5-6-luna Last updated: Thu, 22 Oct 2026 05:40:11 GMT Reproduction and quotation must name Benchize, link to the canonical HTML URL, and retain individual source citations. OpenAI ## Benchmarks | Benchmark | Score | ± | Rank | Cost | Latency | Source | | | --- | --- | --- | --- | --- | --- | --- | --- | | [DesignArena ASCII art generation](https://benchize.com/benchmarks/designarena%3Aascii.md) | 1,142elo | — | 41 / 65 | — | — | [designarena · public](https://www.designarena.ai/api/leaderboard#board=ascii) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `elo` \| 1142 \| elo \| ascii \| Higher is better \| ### Configuration arenaType models category ascii inputModality Not reported sourceModelVersion gpt-5.6-luna variationName public ### Reported statistics averageGenerationTimeMs 14166 battles 316 losses 184 standardError Not reported winRate 41.8 wins 132 ### Source [Original source](https://www.designarena.ai/api/leaderboard#board=ascii) Source designarena Original model label GPT-5.6 Luna Source version public Observed 2026-10-21T16:38:03.513Z Evidence SHA-256 `0603b8c65b44ee887f5b566feb469465f59635137a6ac5c6d94c23bcf3776311` Source locator `/data/57` | | | | | | | | | [Longform Creative Writing](https://benchize.com/benchmarks/eq-bench%3Alongform-writing.md) | 75.5% | — | 25 / 93 | — | — | [eq bench · longform-writing](https://eqbench.com/creative_writing_longform.js) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `overall_score_100` \| 75.5 \| percent \| overall \| Higher is better \| \| `chapter1_avg` \| 15.98 \| rubric_score \| overall \| Higher is better \| \| `chapter2_avg` \| 15.78 \| rubric_score \| overall \| Higher is better \| \| `chapter3_avg` \| 15.65 \| rubric_score \| overall \| Higher is better \| \| `chapter4_avg` \| 15.90 \| rubric_score \| overall \| Higher is better \| \| `chapter5_avg` \| 15.29 \| rubric_score \| overall \| Higher is better \| \| `chapter6_avg` \| 15.02 \| rubric_score \| overall \| Higher is better \| \| `chapter7_avg` \| 14.56 \| rubric_score \| overall \| Higher is better \| \| `chapter8_avg` \| 15.20 \| rubric_score \| overall \| Higher is better \| \| `final_judgement_avg` \| 14.83 \| rubric_score \| overall \| Higher is better \| ### Configuration interactiveAdjustments none protocol longform-writing sourceModelVersion gpt-5.6-luna ### Source [Original source](https://eqbench.com/creative_writing_longform.js) Source eq bench Original model label gpt-5.6-luna Source version longform-writing Observed 2026-10-22T05:10:05.903Z Evidence SHA-256 `3ba283ce357ac7620e16db640a961879c30fe3ddc50a27de9a8ed4290784825c` Source locator `/leaderboardDataLongformV3/119` | | | | | | | | | [DesignArena Website generation](https://benchize.com/benchmarks/designarena%3Awebsite.md) | 1,256elo | — | 36 / 123 | — | — | [designarena · public](https://www.designarena.ai/api/leaderboard#board=website) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `elo` \| 1256 \| elo \| website \| Higher is better \| ### Configuration arenaType models category website inputModality text sourceModelVersion gpt-5.6-luna variationName public ### Reported statistics averageGenerationTimeMs 51193 battles 13208 losses 6725 standardError Not reported winRate 49.1 wins 6483 ### Source [Original source](https://www.designarena.ai/api/leaderboard#board=website) Source designarena Original model label GPT-5.6 Luna Source version public Observed 2026-10-21T16:37:57.757Z Evidence SHA-256 `51873e97776a3c5ae706b24cc2c60384793dd18398df970e213a8e7c276d8ac0` Source locator `/data/56` | | | | | | | | | [EQ-Bench 4](https://benchize.com/benchmarks/eq-bench%3Aeqbench4.md) | 1,156.3elo | CI 1,144.4–1,170.1 | 19 / 26 | — | — | [eq bench · eqbench4](https://eqbench.com/eqbench4/eqbench4_data.js) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `elo` \| 1156.3 \| elo \| overall \| Higher is better \| ### Configuration protocol eqbench4 ### Reported statistics Uncertainty Confidence interval: 1,144.4–1,170.1 confidenceIntervalHigh 1170.1 confidenceIntervalLow 1144.4 scenarios 120 ### Source [Original source](https://eqbench.com/eqbench4/eqbench4_data.js) Source eq bench Original model label gpt-5.6-luna Source version eqbench4 Observed 2026-10-22T05:10:04.699Z Evidence SHA-256 `188d8ea4a393978063a6c24dff6c92ce185169827038bfa558091212a68c29d8` Source locator `/models/18` | | | | | | | | | [FinanceBenchmark v2](https://benchize.com/benchmarks/financebenchmark%3Av2.md) | 90.41% | CI 83.56–95.89% | 5 / 21 | — | — | [financebenchmark](https://finbenchmark.ai/) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `pass_at_1` \| 0.90411 \| score_fraction \| reported \| Higher is better \| \| `accuracy` \| 0.876712 \| score_fraction \| reported \| Higher is better \| \| `knowledge` \| 1 \| score_fraction \| category \| Higher is better \| \| `analysis` \| 1 \| score_fraction \| category \| Higher is better \| \| `quant` \| 0.533333 \| score_fraction \| category \| Higher is better \| \| `portfolio_mgmt` \| 1 \| score_fraction \| category \| Higher is better \| \| `credit_underwriting` \| 1 \| score_fraction \| category \| Higher is better \| \| `banking_regulation` \| 1 \| score_fraction \| category \| Higher is better \| \| `derivatives_structuring` \| 1 \| score_fraction \| category \| Higher is better \| \| `corporate_finance` \| 1 \| score_fraction \| category \| Higher is better \| ### Configuration harnessVersion 0.2.0 Reasoning effort unknown sourceRunId b44e7fb3-93b4-4c5a-bfff-0faa913214dc taskSetVersion v2 ### Reported statistics Uncertainty Confidence interval: 83.56–95.89% confidenceInterval [0.8356,0.9589] confidenceMethod percentile bootstrap over tasks, n=5000, alpha=0.05 sampleSize 73 ### Source [Original source](https://finbenchmark.ai/) Source financebenchmark Original model label gpt-5.6-luna Evaluated 2026-07-25T16:35:10.956976+00:00 Observed 2026-10-22T04:10:04.512Z Evidence SHA-256 `f9e7dab8846b092fc0befeca8c5cd02a8187c0f5b6b10c32ab2c7ab60f7af575` Source locator `/rows/4` | | | | | | | | | [DesignArena Data visualization generation](https://benchize.com/benchmarks/designarena%3Adata-viz.md) | 1,211elo | — | 44 / 99 | — | — | [designarena · public](https://www.designarena.ai/api/leaderboard#board=data-viz) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `elo` \| 1211 \| elo \| data-viz \| Higher is better \| ### Configuration arenaType models category dataviz inputModality Not reported sourceModelVersion gpt-5.6-luna variationName public ### Reported statistics averageGenerationTimeMs 38353 battles 1048 losses 567 standardError Not reported winRate 45.9 wins 481 ### Source [Original source](https://www.designarena.ai/api/leaderboard#board=data-viz) Source designarena Original model label GPT-5.6 Luna Source version public Observed 2026-10-21T16:37:58.264Z Evidence SHA-256 `a895f6f1a25fa8eb01f821c2097ddec4f884de7bd22f1b8a22e82e6679b71849` Source locator `/data/68` | | | | | | | | | [Vals Multimodal Index / swebench](https://benchize.com/benchmarks/vals-ai%3Avals_multimodal_index%3Aswebench.md) | 93.14% | SE ±2.5 pp | 4 / 20 | $0.05 | 184.77source duration | [Vals AI · 1.2](https://www.vals.ai/_astro/benchmark_view_vals_multimodal_index.virVpWMs.json) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `accuracy` \| 93.137 \| percent \| reported \| Higher is better \| \| `cost_per_test` \| 0.051004 \| USD \| per_test \| Lower is better \| \| `latency` \| 184.771 \| source_duration \| reported_duration \| Lower is better \| ### Configuration computeEffort Not reported harness Not reported maxOutputTokens Not reported provider Not reported reasoning Not reported Reasoning effort unknown Temperature Not reported topP Not reported verbosity Not reported ### Reported statistics Uncertainty Standard error: ±2.5 pp sourcePopulation 33 stderr 2.503 tokenTotals Not reported ### Source [Original source](https://www.vals.ai/_astro/benchmark_view_vals_multimodal_index.virVpWMs.json) Source Vals AI Original model label openai/gpt-5.6-luna Source version 1.2 Observed 2026-10-22T02:10:07.406Z Evidence SHA-256 `077b22575f6e075b7b78157d000ec8f94d7ead409c7dcbcf04887630ed572a2d` Source locator `/tasks/swebench/openai~1gpt-5.6-luna` | | | | | | | | | [Vending-Bench 2](https://benchize.com/benchmarks/vendingbench%3Av2.md) | — | — | — | $4,094.71 | — | [vendingbench](https://andonlabs.com/_app/immutable/chunks/Cjn0_qj9.js) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `final_balance` \| 4094.7120000000004 \| USD \| one_simulated_year \| Higher is better \| \| `geometric_mean_balance` \| 2667.7395491823154 \| USD \| positive_final_balances \| Higher is better \| ### Configuration Reasoning effort unknown Model configuration GPT-5.6 Luna thinkingEnabled Not reported ### Reported statistics confidenceHalfWidth95 2634.545723566312 positiveBalanceRuns 5 runCount 5 standardDeviation 3005.624146798798 standardError 1344.1559814113837 ### Source [Original source](https://andonlabs.com/_app/immutable/chunks/Cjn0_qj9.js) Source vendingbench Original model label GPT-5.6 Luna Observed 2026-10-21T16:36:40.592Z Evidence SHA-256 `1a0b043147050298c405bcb743d73e425d532464202231cd18c27f836fa5f223` Source locator `/rows/32` | | | | | | | | | [DistressBench](https://benchize.com/benchmarks/scale%3Adistressbench.md) | 72.68source score | CI 71.59–73.77 | 11 / 27 | — | — | [scale](https://labs.scale.com/leaderboard/distressbench) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `score` \| 72.68 \| source_score \| reported \| Higher is better \| ### Configuration Reasoning effort unknown Model configuration gpt-5.6-luna sourceModelVersion gpt-5.6-luna thinkingEnabled Not reported ### Reported statistics Uncertainty Confidence interval: 71.59–73.77 contaminationWarning Not reported rank 15 reportedConfidenceHalfWidth 1.09 ### Source [Original source](https://labs.scale.com/leaderboard/distressbench) Source scale Original model label gpt-5.6-luna Observed 2026-10-22T03:30:05.896Z Evidence SHA-256 `6454425cf2678fa1119e99bffcdc827763d2b9c485395cb7aba2ef2e1f0cafbd` Source locator `/rows/14` | | | | | | | | | [DesignArena Overall frontend coding](https://benchize.com/benchmarks/designarena%3Acode.md) | 1,231elo | SE ±2.54 | 41 / 116 | — | — | [designarena · public](https://www.designarena.ai/api/leaderboard#board=code) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `elo` \| 1231 \| elo \| code \| Higher is better \| ### Configuration arenaType models category allcategories inputModality text sourceModelVersion gpt-5.6-luna variationName public ### Reported statistics Uncertainty Standard error: ±2.54 averageGenerationTimeMs 46721 battles 21824 losses 11760 standardError 2.5374 winRate 46.1 wins 10064 ### Source [Original source](https://www.designarena.ai/api/leaderboard#board=code) Source designarena Original model label GPT-5.6 Luna Source version public Observed 2026-10-21T16:37:57.301Z Evidence SHA-256 `0c897b58670f5e352bd123db999a40c0d1781a443964c502b90774a76a3a7758` Source locator `/data/67` | | | | | | | | | [DesignArena Image to HTML](https://benchize.com/benchmarks/designarena%3Aimage-to-html.md) | 1,159elo | — | 31 / 35 | — | — | [designarena · public](https://www.designarena.ai/api/leaderboard#board=image-to-html) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `elo` \| 1159 \| elo \| image-to-html \| Higher is better \| ### Configuration arenaType models category website inputModality image sourceModelVersion gpt-5.6-luna variationName public ### Reported statistics averageGenerationTimeMs 45053 battles 2525 losses 1377 standardError Not reported winRate 45.5 wins 1148 ### Source [Original source](https://www.designarena.ai/api/leaderboard#board=image-to-html) Source designarena Original model label GPT-5.6 Luna Source version public Observed 2026-10-21T16:37:58.959Z Evidence SHA-256 `94f97ebbdd53a8c56f138b620e59b3a9b35c66c3954dcaaa1b2ed4c71518b404` Source locator `/data/37` | | | | | | | | | [DesignArena UI component generation](https://benchize.com/benchmarks/designarena%3Aui-components.md) | 1,250elo | — | 35 / 112 | — | — | [designarena · public](https://www.designarena.ai/api/leaderboard#board=ui-components) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `elo` \| 1250 \| elo \| ui-components \| Higher is better \| ### Configuration arenaType models category uicomponent inputModality Not reported sourceModelVersion gpt-5.6-luna variationName public ### Reported statistics averageGenerationTimeMs 41830 battles 1819 losses 942 standardError Not reported winRate 48.2 wins 877 ### Source [Original source](https://www.designarena.ai/api/leaderboard#board=ui-components) Source designarena Original model label GPT-5.6 Luna Source version public Observed 2026-10-21T16:37:57.993Z Evidence SHA-256 `46482ec1b4012638eace65493daea4750e2088098018fd9d5fc46126fc1f8557` Source locator `/data/54` | | | | | | | | | [OpenVibeEval Accessibility](https://benchize.com/benchmarks/openvibeeval%3Aaccessibility.md) | 74 | — | 13 / 26 | — | — | [openvibeeval](https://openvibeeval.com/leaderboard/) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `adjusted_score` \| 74 \| score \| sample_size_adjusted_accessibility \| Higher is better \| ### Configuration Reasoning effort unknown Model configuration GPT-5.6 Luna thinkingEnabled Not reported ### Reported statistics runCount 9 ### Source [Original source](https://openvibeeval.com/leaderboard/) Source openvibeeval Original model label GPT-5.6 Luna Evaluated 2026-08-04 Observed 2026-10-21T16:32:04.885Z Evidence SHA-256 `9b2e7d6060910e3dc7083a6a7f67377601ce78806b2b6b7693cf8d047dd63fbb` Source locator `/rows/23` | | | | | | | | | [DesignArena Browser game generation](https://benchize.com/benchmarks/designarena%3Agame-dev.md) | 1,195elo | — | 47 / 117 | — | — | [designarena · public](https://www.designarena.ai/api/leaderboard#board=game-dev) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `elo` \| 1195 \| elo \| game-dev \| Higher is better \| ### Configuration arenaType models category gamedev inputModality Not reported sourceModelVersion gpt-5.6-luna variationName public ### Reported statistics averageGenerationTimeMs 42242 battles 3932 losses 2300 standardError Not reported winRate 41.5 wins 1632 ### Source [Original source](https://www.designarena.ai/api/leaderboard#board=game-dev) Source designarena Original model label GPT-5.6 Luna Source version public Observed 2026-10-21T16:38:01.100Z Evidence SHA-256 `53db6a89112ce8cdf644568c666d4b8309aece764cfcedb291ffd52ae3934e30` Source locator `/data/76` | | | | | | | | | [Creative Writing v3](https://benchize.com/benchmarks/eq-bench%3Acreative-writing-v3.md) | 1,828.7elo | — | 21 / 90 | — | — | [eq bench · creative-writing-v3](https://eqbench.com/creative_writing.js) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `elo_score` \| 1828.7 \| elo \| overall \| Higher is better \| \| `creative_writing_score` \| 16.58 \| rubric_score \| overall \| Higher is better \| ### Configuration interactiveAdjustments none protocol creative-writing-v3 sourceModelVersion gpt-5.6-luna ### Source [Original source](https://eqbench.com/creative_writing.js) Source eq bench Original model label gpt-5.6-luna Source version creative-writing-v3 Observed 2026-10-22T05:10:05.433Z Evidence SHA-256 `722ddb132e8d3a5e5c39b8d445f8475f3f7e24893a007260c6f3e3cce5c1ee18` Source locator `/leaderboardDataCreativeWritingV3/22` | | | | | | | | | [AutomationBench](https://benchize.com/benchmarks/zapier%3Aautomationbench.md) | 0.15% | — | 110 / 113 | $0.02 | — | [zapier](https://framerusercontent.com/sites/4WTSl4BNjd1q9QFEFibC6h/lOvLnhItj8S8-1vyjH_s33Jn-WmUXPmiJ5Diajl0Q38.CMutaHYl.mjs) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `score` \| 0.15 \| percent \| reported \| Higher is better \| \| `cost` \| 0.02 \| USD \| per_task \| Lower is better \| ### Configuration benchmarkVersion 1.0.6 costFootnote false Fallback policy Not reported Reasoning effort unknown Model configuration GPT-5.6 Luna thinkingEnabled Not reported ### Reported statistics rank 124 ### Source [Original source](https://framerusercontent.com/sites/4WTSl4BNjd1q9QFEFibC6h/lOvLnhItj8S8-1vyjH_s33Jn-WmUXPmiJ5Diajl0Q38.CMutaHYl.mjs) Source zapier Original model label GPT-5.6 Luna Observed 2026-10-21T16:34:56.783Z Evidence SHA-256 `43978e38f018789fa59c11de5328abe9e5905bfa9a5a4d601fa3aa4d9c153b0d` Source locator `/rows/123` | | | | | | | | | [NC Bench](https://benchize.com/benchmarks/nc-bench%3Aoverall.md) | 85.06% | — | 98 / 144 | — | — | [nc bench](https://www.nc-bench.com/models) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `score` \| 85.06 \| percent \| reported \| Higher is better \| \| `tooling` \| 99.9 \| percent \| category \| Higher is better \| \| `creative_writing` \| 89.69 \| percent \| category \| Higher is better \| \| `language` \| 99.33 \| percent \| category \| Higher is better \| \| `utility` \| 75 \| percent \| category \| Higher is better \| \| `reasoning` \| 72.88 \| percent \| category \| Higher is better \| \| `text_editing` \| 95.6 \| percent \| category \| Higher is better \| \| `rule_following` \| 54.7 \| percent \| category \| Higher is better \| \| `hallucination` \| 93.37 \| percent \| category \| Higher is better \| ### Configuration Reasoning effort unknown Model configuration GPT-5.6 Luna thinkingEnabled Not reported ### Source [Original source](https://www.nc-bench.com/models) Source nc bench Original model label GPT-5.6 Luna Observed 2026-10-21T16:31:48.370Z Evidence SHA-256 `ec261022458543624b08a136d01f5a2f0666cd52ffb49c64d6ca983e8543d1b5` Source locator `/rows/126` | | | | | | | | | [DesignArena SVG generation](https://benchize.com/benchmarks/designarena%3Asvgs.md) | 1,194elo | — | 26 / 77 | — | — | [designarena · public](https://www.designarena.ai/api/leaderboard#board=svgs) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `elo` \| 1194 \| elo \| svgs \| Higher is better \| ### Configuration arenaType models category svg inputModality Not reported sourceModelVersion gpt-5.6-luna variationName public ### Reported statistics averageGenerationTimeMs 20265 battles 1558 losses 858 standardError Not reported winRate 44.9 wins 700 ### Source [Original source](https://www.designarena.ai/api/leaderboard#board=svgs) Source designarena Original model label GPT-5.6 Luna Source version public Observed 2026-10-21T16:38:03.249Z Evidence SHA-256 `8cbc34a474a66ef5c64f3ffe557df9b55bf7e13368c07c0214223e3ed8f3f21e` Source locator `/data/49` | | | | | | | | | [DesignArena 3D design generation](https://benchize.com/benchmarks/designarena%3A3d-design.md) | 1,122elo | — | 61 / 110 | — | — | [designarena · public](https://www.designarena.ai/api/leaderboard#board=3d-design) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `elo` \| 1122 \| elo \| 3d-design \| Higher is better \| ### Configuration arenaType models category 3d inputModality Not reported sourceModelVersion gpt-5.6-luna variationName public ### Reported statistics averageGenerationTimeMs 33780 battles 3779 losses 2391 standardError Not reported winRate 36.7 wins 1388 ### Source [Original source](https://www.designarena.ai/api/leaderboard#board=3d-design) Source designarena Original model label GPT-5.6 Luna Source version public Observed 2026-10-21T16:37:58.515Z Evidence SHA-256 `bcc0267f7bc7e9ec112306b3a35413cf78bbccbfaa838356232d5d5ed0b83d0f` Source locator `/data/98` | | | | | | | | --- Cite as: GPT-5.6 Luna — Benchize, https://benchize.com/models/gpt-5-6-luna (retrieved 2026-10-22)